chore: Update select input styles (#309)

The `underlineSelectClasses` in the `useSelectClasses.ts` file has been updated to include a new `dark:text-gray-500` class. This change improves the styling of the select input in dark mode.

Co-authored-by: Oğuzhan Güç <[email protected]>

src/components/FwbSelect/composables/useSelectClasses.ts

@@ -12,7 +12,7 @@ const baseLabelClasses = 'block mb-2 text-sm font-medium'
 // INPUT
 const defaultSelectClasses = 'w-full text-gray-900 bg-gray-50 focus:ring-primary-500 focus:border-primary-500 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500'
 const disabledSelectClasses = 'cursor-not-allowed bg-gray-100'
-const underlineSelectClasses = 'bg-transparent dark:bg-transparent border-b-2 border-gray-200 appearance-none dark:border-gray-700 focus:outline-none focus:ring-0 focus:border-gray-200 peer'
+const underlineSelectClasses = 'bg-transparent dark:bg-transparent dark:text-gray-500 border-b-2 border-gray-200 dark:border-gray-700 focus:outline-none focus:ring-0 focus:border-gray-200 peer'
 const selectSizeClasses: Record<InputSize, string> = {
   lg: 'p-4',
   md: 'p-2.5 text-sm',